Overslaan en naar de inhoud gaan
Publicaties | Personen | Instituten | Projecten
[ meld een fout in dit record ]mandje (1): toevoegen | toon Print deze pagina

one publication added to basket [241263]
Mid-Holocene sea surface conditions and riverine influence on the inshore Great Barrier Reef
Roche, R.C.; Perry, C.T.; Smithers, S.G.; Leng, M.J.; Grove, C.A.; Sloane, H.J.; Unsworth, C.E. (2014). Mid-Holocene sea surface conditions and riverine influence on the inshore Great Barrier Reef. Holocene 24: 885-897. http://dx.doi.org/10.1177/0959683614534739
In: The Holocene. Edward Arnold: Sevenoaks. ISSN 0959-6836; e-ISSN 1477-0911, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Auteurs  Top 
  • Roche, R.C.
  • Perry, C.T.
  • Smithers, S.G.
  • Leng, M.J.
  • Grove, C.A., meer
  • Sloane, H.J.
  • Unsworth, C.E.

Abstract
    We present measurements of Sr/Ca, d18O, and spectral luminescence ratios (G/B) from a mid-Holocene Porites sp. microatoll recovered from the nearshore Great Barrier Reef (GBR). These records were used as proxies to reconstruct sea surface temperature (SST), the d18O of surrounding seawater (d18Osw), and riverine influence, respectively, and compared with records from a modern Porites sp. microatoll growing in the same environment. Strong riverine influence in the mid-Holocene record is indicated by (1) an increased annual d18Osw range in the mid-Holocene record, (2) negative peaks in d18O characteristic of flood events, and (3) a higher G/B luminescence ratio. Seasonal cycles in G/B suggest that humic acid inputs were elevated for a longer portion of the year during the mid-Holocene. The seasonal cycle of d18Osw peaked earlier in the year in the mid-Holocene record relative to the modern, while mean d18Osw values from the mid-Holocene record were similar to modern values. These records provide an insight into the oceanographic conditions the nearshore GBR experienced during mid-Holocene climatic shifts and are consistent with a strong Australian–Indonesian Summer Monsoon (AISM) system at ~ 4700 cal. yr BP.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs